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Finding the Fourth Proportional to 463,110.60, 639,218.34 and 272,185.32

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Solution

The fourth proportional to 463,110.60, 639,218.34 and 272,185.32 is: 375,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,110.60 : 639,218.34 = 272,185.32 : x
  2. Step 2: Convert to fraction form
    463,110.60/639,218.34 = 272,185.32/x
  3. Step 3: Cross multiply
    463,110.60x = 639,218.34 × 272,185.32
  4. Step 4: Simplify right side
    463,110.60x = 173,985,848,422.77
  5. Step 5: Solve for x
    x = 173,985,848,422.77/463,110.60
  6. Step 6: Final answer
    x = 375,689.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.